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UPSTREAM: dmaengine: core: Skip mask matching when it is not provided to private_candidate

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If mask is NULL skip the mask matching against the DMA device capabilities.

Change-Id: Iee44026c8d43493e4e73d8d483545267dc2e08a7
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
(cherry picked from git.kernel.org next/linux-next.git master
 commit 26b64256e0c4573f3668ac8329a1266ebb9d6120)
This commit is contained in:
Peter Ujfalusi
2015-12-14 22:47:38 +02:00
committed by Huang, Tao
parent fafa1ff1e6
commit 449ee85462
1 changed files with 1 additions and 1 deletions
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2
drivers/dma/dmaengine.c
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@@ -515,7 +515,7 @@ static struct dma_chan *private_candidate(const dma_cap_mask_t *mask,
{
struct dma_chan *chan;
if (!__dma_device_satisfies_mask(dev, mask)) {
if (mask && !__dma_device_satisfies_mask(dev, mask)) {
pr_debug("%s: wrong capabilities\n", __func__);
return NULL;
}